ES2616656T3 - Cutting plate - Google Patents

Cutting plate Download PDF

Info

Publication number
ES2616656T3
ES2616656T3 ES14715050.2T ES14715050T ES2616656T3 ES 2616656 T3 ES2616656 T3 ES 2616656T3 ES 14715050 T ES14715050 T ES 14715050T ES 2616656 T3 ES2616656 T3 ES 2616656T3
Authority
ES
Spain
Prior art keywords
branch
distal portion
cutting edge
cutting plate
central portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
ES14715050.2T
Other languages
Spanish (es)
Inventor
Olivier BONHOMME
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diager SAS
Original Assignee
Diager SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Diager SAS filed Critical Diager SAS
Application granted granted Critical
Publication of ES2616656T3 publication Critical patent/ES2616656T3/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • B23B51/02Twist drills
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/44Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58Chisel-type inserts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2200/00Details of cutting inserts
    • B23B2200/04Overall shape
    • B23B2200/0423Irregular
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/02Connections between shanks and removable cutting heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/46Drills having a centre free from cutting edges or with recessed cutting edges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/50Drilling tools comprising cutting inserts
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00Cutting by use of rotating axially moving tool
    • Y10T408/89Tool or Tool with support
    • Y10T408/909Having peripherally spaced cutting edges

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling Tools (AREA)

Abstract

Plaqueta de corte (6) diseñada para estar fijada a un extremo de un cuerpo de herramienta (4) con el fin de arrastrarse en rotación alrededor de un eje (8), que incluye: - un alma (10) que se extiende axialmente; y - al menos una primera rama (12) y una segunda rama (14) que se extienden radialmente desde el alma (10), comprendiendo la primera rama (12) y la segunda rama (14) cada una: - una porción proximal (12a, 14a) conectada al alma (10), una porción distal (12b, 14b) y una porción central 10 (12c, 14c) que conecta la porción proximal (12a, 14a) y la porción distal (12b, 14b); y - una arista de corte (12d, 14d) que se extiende al menos sobre la porción distal (12b, 14b) y la porción central (12c, 14c); caracterizada por que: - la porción distal (12b) de la primera rama (12) está dispuesta radialmente hacia adelante con respecto a la porción central (12c) de la primera rama (12); y - la porción central (14c) de la segunda rama (14) está dispuesta radialmente hacia adelante con respecto a la porción distal (14b) de la segunda rama (14).Cutting plate (6) designed to be fixed to one end of a tool body (4) in order to drag in rotation about an axis (8), which includes: - an axially extending core (10); and - at least a first branch (12) and a second branch (14) extending radially from the core (10), the first branch (12) and the second branch (14) each comprising: - a proximal portion ( 12a, 14a) connected to the soul (10), a distal portion (12b, 14b) and a central portion 10 (12c, 14c) that connects the proximal portion (12a, 14a) and the distal portion (12b, 14b); and - a cutting edge (12d, 14d) that extends at least over the distal portion (12b, 14b) and the central portion (12c, 14c); characterized in that: - the distal portion (12b) of the first branch (12) is arranged radially forward with respect to the central portion (12c) of the first branch (12); and - the central portion (14c) of the second branch (14) is arranged radially forward with respect to the distal portion (14b) of the second branch (14).

Description

55

1010

15fifteen

20twenty

2525

3030

3535

4040

45Four. Five

50fifty

5555

6060

Plaqueta de corteCutting plate

La presente invencion se refiere a una plaqueta de corte y a una herramienta de perforacion.The present invention relates to a cutting plate and a drilling tool.

Una plaqueta de corte conocida por el depositante se divulga en el documento de los Estados Unidos US6860344. Esta plaqueta de corte incluye un alma que se extiende axialmente y tres ramas identicas que se extienden radialmente desde el alma. Las ramas estan desviadas angularmente en 120°. El documento de los Estados Unidos US 2002/195279 divulga igualmente una plaqueta de corte.A cutting plate known to the depositor is disclosed in US document US6860344. This cutting plate includes an axially extending soul and three identical branches that extend radially from the soul. The branches are angularly offset by 120 °. US 2002/195279 also discloses a cutting plate.

Cada rama presenta una porcion proximal conectada al alma, una porcion distal y una porcion central que une la porcion proximal y la porcion distal.Each branch has a proximal portion connected to the soul, a distal portion and a central portion that joins the proximal portion and the distal portion.

Cada rama presenta una arista de corte que se extiende sobre la porcion proximal, la porcion distal y la porcion central.Each branch has a cutting edge that extends over the proximal portion, the distal portion and the central portion.

Un inconveniente de una plaqueta de corte de este tipo reside en su escasa capacidad para evacuar las virutas de materia durante la perforacion. Tambien, durante una perforacion, las virutas de materias tienden a acumularse arrastrando un aumento de los rozamientos ejercidos sobre la plaqueta de corte. Desde ese momento, la velocidad de perforacion disminuye y el desgaste de la plaqueta es mas importanteA drawback of such a cutting plate lies in its poor ability to evacuate the chips of matter during drilling. Also, during a drilling, the shavings of materials tend to accumulate dragging an increase of the frictions exerted on the cutting plate. From that moment, the drilling speed decreases and platelet wear is more important

La invencion tiene por objeto remediar este inconveniente.The invention is intended to remedy this inconvenience.

La invencion se refiere a una plaqueta de corte disenada para estar fijada a un extremo de un cuerpo de herramienta con el fin de arrastrarse en rotacion alrededor de un eje, que incluye:The invention relates to a cutting plate designed to be fixed to one end of a tool body in order to creep around a shaft, which includes:

- un alma que se extiende axialmente; y- a soul that extends axially; Y

- al menos una primera rama y una segunda rama que se extienden radialmente desde el alma, comprendiendo la primera rama y la segunda rama cada una:- at least a first branch and a second branch that extend radially from the soul, comprising the first branch and the second branch each:

• una porcion proximal conectada al alma, una porcion distal y una porcion central que conecta la porcion proximal y la porcion distal; y• a proximal portion connected to the soul, a distal portion and a central portion that connects the proximal portion and the distal portion; Y

• una arista de corte que se extiende al menos sobre la porcion distal y la porcion central; caracterizada por que:• a cutting edge that extends at least over the distal portion and the central portion; characterized by:

- la porcion distal de la primera rama esta dispuesta radialmente hacia adelante con respecto a la porcion central de la primera rama; y- the distal portion of the first branch is arranged radially forward with respect to the central portion of the first branch; Y

- la porcion central de la segunda rama esta dispuesta radialmente hacia adelante con respecto a la porcion distal de la segunda rama.- the central portion of the second branch is arranged radially forward with respect to the distal portion of the second branch.

Durante una perforacion, el movimiento descrito por la plaqueta de corte es helicoidal. De esta manera, el movimiento es una combinacion simultanea de una traslacion y de una rotacion.During a perforation, the movement described by the cutting plate is helical. In this way, the movement is a simultaneous combination of a translation and a rotation.

La expresion “radialmente hacia adelante” hace referencia al sentido de rotacion de la plaqueta de corte.The expression "radially forward" refers to the direction of rotation of the cutting plate.

La expresion “axialmente hacia adelante” hace referencia al sentido de traslacion de la plaqueta de corte.The expression "axially forward" refers to the direction of translation of the cutting plate.

La porcion distal de la primera rama esta dispuesta radialmente hacia adelante con respecto a la porcion central de la primera rama.The distal portion of the first branch is arranged radially forward with respect to the central portion of the first branch.

En otras palabras, con vista desde arriba, la porcion distal de la primera rama esta dispuesta hacia adelante con respecto a la porcion central de la primera rama, refiriendose adelante al sentido de rotacion.In other words, with a view from above, the distal portion of the first branch is arranged forward with respect to the central portion of the first branch, referring forward to the direction of rotation.

De esta manera, la arista de corte de la primera rama permite guiar hacia el interior las virutas de materia con vistas a evacuarse por el cuerpo de herramienta.In this way, the cutting edge of the first branch allows material chips to be guided inwards with a view to being evacuated by the tool body.

La porcion central de la segunda rama esta dispuesta radialmente hacia adelante con respecto a la porcion distal de la segunda rama.The central portion of the second branch is arranged radially forward with respect to the distal portion of the second branch.

En otras palabras, con vista desde arriba, la porcion central de la segunda rama esta dispuesta hacia adelante con respecto a la porcion distal de la segunda rama, refiriendose adelante al sentido de rotacion.In other words, with a view from above, the central portion of the second branch is arranged forward with respect to the distal portion of the second branch, referring forward to the direction of rotation.

55

1010

15fifteen

20twenty

2525

3030

3535

4040

45Four. Five

50fifty

5555

6060

6565

De esta manera, la arista de corte de la segunda rama permite guiar hacia el exterior el excedente de virutas de materia que no han podido evacuarse por el cuerpo de herramienta con el fin de limitar el riesgo de atasco a la altura del alma.In this way, the cutting edge of the second branch allows the excess of material chips that have not been able to be evacuated through the tool body to be directed outward in order to limit the risk of jamming at the height of the soul.

Entonces, la plaqueta de corte segun la invencion permite facilitar la evacuacion de las virutas de materia.Then, the cutting plate according to the invention allows to facilitate the evacuation of the shavings of matter.

La plaqueta de corte segun la invencion puede incluir una o varias de las siguientes caracterfsticas.The cutting plate according to the invention may include one or more of the following characteristics.

Siguiendo una caracterfstica, la arista de corte de la primera rama presenta, al menos sobre la porcion distal y la porcion central, un perfil concavo; y la arista de corte de la segunda rama presenta, al menos sobre la porcion distal y la porcion central, un perfil convexo.Following a characteristic, the cutting edge of the first branch presents, at least on the distal portion and the central portion, a concave profile; and the cutting edge of the second branch has, at least on the distal portion and the central portion, a convex profile.

En una forma de ejecucion preferente, la plaqueta de corte incluye al menos una tercera rama que comprende:In a preferred embodiment, the cutting plate includes at least a third branch comprising:

• una porcion proximal conectada al alma, una porcion distal y una porcion central que conecta la porcion proximal y la porcion distal; y• a proximal portion connected to the soul, a distal portion and a central portion that connects the proximal portion and the distal portion; Y

• una arista de corte que se extiende al menos sobre la porcion distal y la porcion central.• a cutting edge that extends at least over the distal portion and the central portion.

Un aumento del numero de ramas permite mejorar la estabilidad de la plaqueta de corte durante la perforacion.An increase in the number of branches allows to improve the stability of the cutting plate during drilling.

Ventajosamente, cada arista de corte de la primera rama, de la segunda rama y de la tercera rama comprende un punto de ataque dispuesto axialmente hacia adelante; yAdvantageously, each cutting edge of the first branch, the second branch and the third branch comprises a point of attack arranged axially forward; Y

los puntos de ataque de la primera rama, de la segunda rama y de la tercera rama estan dispuestos en un mismo plano radial.the attack points of the first branch, the second branch and the third branch are arranged in the same radial plane.

Durante el inicio de la perforacion, los puntos de ataque de la primera rama, de la segunda rama y de la tercera rama descansan contra la materia. Entonces, el eje de la plaqueta de corte se extiende perfectamente de manera perpendicular a la materia. De esta manera, se facilita el posicionamiento de la plaqueta de corte.During the beginning of the drilling, the attack points of the first branch, the second branch and the third branch rest against the matter. Then, the axis of the cutting plate extends perfectly perpendicular to the material. In this way, the positioning of the cutting plate is facilitated.

Preferentemente, los puntos de ataque de la primera rama, de la segunda rama y de la tercera rama estan dispuestos alrededor de un vaciamiento habilitado en un extremo del alma.Preferably, the attack points of the first branch, the second branch and the third branch are arranged around an enabled emptying at one end of the soul.

Un vaciamiento de este tipo permite evitar que el extremo del alma, que presenta una velocidad de rotacion nula, llegue a frenar la plaqueta de corte por rozamiento.An emptying of this type makes it possible to prevent the end of the soul, which has a zero rotation speed, from stopping the friction cutting plate.

Preferentemente, el vaciamiento esta centrado sobre el eje de la plaqueta de corte.Preferably, the emptying is centered on the axis of the cutting plate.

Ventajosamente, el vaciamiento presenta un fondo de perfil convexo.Advantageously, the emptying has a convex profile bottom.

De esta manera, durante la perforacion, el fondo del vaciamiento gufa las virutas de materia hacia el exterior del vaciamiento. El riesgo de acumulacion de virutas de materia y de atasco en el extremo del alma se limita.In this way, during drilling, the bottom of the emptying guides the chips of matter outwardly of the emptying. The risk of accumulation of matter chips and jam at the end of the soul is limited.

Siguiendo una forma de ejecucion, la porcion central de la tercera rama es mas ancha que la porcion distal de la tercera rama, de modo que la arista de corte de la tercera rama presenta un desnivel.Following a form of execution, the central portion of the third branch is wider than the distal portion of the third branch, so that the cutting edge of the third branch is uneven.

La porcion central de la tercera rama mas ancha que la porcion distal refuerza la tercera rama e impide su rotura. La tercera rama puede soportar mas presion que la primera rama y la segunda rama.The central portion of the third branch wider than the distal portion reinforces the third branch and prevents its breakage. The third branch can withstand more pressure than the first branch and the second branch.

Ventajosamente, la arista de corte de la tercera rama esta, al menos en parte, axialmente mas hacia adelante que la arista de corte de la primera rama y/o que la arista de corte de la segunda rama.Advantageously, the cutting edge of the third branch is, at least in part, axially further forward than the cutting edge of the first branch and / or than the cutting edge of the second branch.

De esta manera, la tercera rama esta dispuesta para soportar mas presion que la primera rama y/o la segunda rama.In this way, the third branch is arranged to withstand more pressure than the first branch and / or the second branch.

Preferentemente, la arista de corte de la tercera rama presenta una longitud inferior a la arista de corte de la primera rama y/o de la segunda rama.Preferably, the cutting edge of the third branch has a length less than the cutting edge of the first branch and / or the second branch.

De esta manera, la tercera rama soporta todavfa mas presion que la primera rama y la segunda rama. La penetracion de la plaqueta de corte se facilita y la cantidad de materia recortada en cada rotacion se incrementa. Por lo tanto, la velocidad de perforacion se mejora.In this way, the third branch withstands even more pressure than the first branch and the second branch. The penetration of the cutting plate is facilitated and the amount of material trimmed in each rotation is increased. Therefore, the drilling speed is improved.

La invencion se refiere igualmente a una herramienta de perforacion, tal como un taladro, caracterizada por que incluye:The invention also relates to a drilling tool, such as a drill, characterized in that it includes:

- un cuerpo de herramienta; y- a tool body; Y

- una plaqueta de corte tal como se ha presentado anteriormente, fijada a un extremo del cuerpo de herramienta.- a cutting plate as presented above, fixed to one end of the tool body.

55

1010

15fifteen

20twenty

2525

3030

3535

4040

45Four. Five

50fifty

5555

A tftulo de ejemplo, el extremo del cuerpo de herramienta presenta una hendidura y la plaqueta de corte esta insertada en esta hendidura y soldada.As an example, the end of the tool body has a groove and the cutting plate is inserted in this groove and welded.

La invencion se comprendera mejor con la ayuda de la descripcion que sigue, con referencia al dibujo esquematico adjunto que representa, a tftulo de ejemplo, un taladro segun la invencion.The invention will be better understood with the help of the description that follows, with reference to the attached schematic drawing which represents, by way of example, a drill according to the invention.

La figura 1 es una vista en perspectiva de un taladro segun la invencion;Figure 1 is a perspective view of a drill according to the invention;

La figura 2 es una vista en perspectiva de una plaqueta de corte que equipa el taladro de la figura 1;Figure 2 is a perspective view of a cutting plate that equips the drill of Figure 1;

La figura 3 es una vista desde arriba de la plaqueta de corte de la figura 2;Figure 3 is a top view of the cutting plate of Figure 2;

La figura 4 es una vista de lado de la plaqueta de corte de la figura 2; yFigure 4 is a side view of the cutting plate of Figure 2; Y

La figura 5 es un grafico que representa la posicion axial de los puntos que constituyen unas aristas de corte de la plaqueta de corte de la figura 2.Figure 5 is a graph depicting the axial position of the points that constitute cutting edges of the cutting plate of Figure 2.

La figura 1 representa un taladro 2. Este taladro 2 incluye un cuerpo de herramienta 4 y una plaqueta de corte 6 fijada a un extremo del cuerpo de herramienta 4. El cuerpo de herramienta 4 y la plaqueta de perforacion 6 estan disenados para arrastrarse en rotacion alrededor de un eje 8.Figure 1 depicts a drill 2. This drill 2 includes a tool body 4 and a cutting plate 6 fixed to one end of the tool body 4. The tool body 4 and the drilling plate 6 are designed to rotate in rotation. around an axis 8.

La plaqueta de corte 6 (representada mejor en las figuras 2 a 4) incluye un alma 10 que se extiende axialmente.The cutting plate 6 (best represented in Figures 2 to 4) includes an axially extending core 10.

La plaqueta de corte 6 incluye tres ramas 12, 14, 16 que se extienden radialmente desde el alma 10. Las ramas 12, 14, 16 estan desviadas angularmente en 120°.The cutting plate 6 includes three branches 12, 14, 16 that extend radially from the soul 10. The branches 12, 14, 16 are angularly offset by 120 °.

Cada rama 12, 14, 16 comprende una porcion proximal respectivamente 12a, 14a, 16a conectada al alma 10, una porcion distal respectivamente 12b, 14b, 16b y una porcion central respectivamente 12c, 14c, 16c que conecta la porcion proximal 12a, 14a, 16a y la porcion distal 12b, 14b, 16b.Each branch 12, 14, 16 comprises a proximal portion respectively 12a, 14a, 16a connected to the soul 10, a distal portion respectively 12b, 14b, 16b and a central portion respectively 12c, 14c, 16c that connects the proximal portion 12a, 14a, 16a and the distal portion 12b, 14b, 16b.

La porcion distal 12b de la rama 12 esta dispuesta radialmente hacia adelante con respecto a la porcion central 12c (tal como aparece mejor en la figura 3). La porcion central 14c de la rama 14 esta dispuesta radialmente hacia adelante con respecto a la porcion distal 14b. La porcion central 16c es mas ancha que la porcion distal 16b.The distal portion 12b of the branch 12 is arranged radially forward with respect to the central portion 12c (as best seen in Figure 3). The central portion 14c of the branch 14 is arranged radially forward with respect to the distal portion 14b. The central portion 16c is wider than the distal portion 16b.

Cada rama 12, 14, 16 comprende una arista de corte 12d, 14d, 16d que se extiende respectivamente sobre las porciones 12a, 12b, 12c, 14a, 14b, 14c y 16a, 16b, 16c.Each branch 12, 14, 16 comprises a cutting edge 12d, 14d, 16d that extends respectively on portions 12a, 12b, 12c, 14a, 14b, 14c and 16a, 16b, 16c.

La arista de corte 12d de la rama 12 es curvada y presenta, sobre la porcion distal 12b y la porcion central 12c, un perfil concavo.The cutting edge 12d of the branch 12 is curved and has, on the distal portion 12b and the central portion 12c, a concave profile.

La arista de corte 14d de la rama 14 es curvada y presenta, sobre la porcion distal 14b y la porcion central 14c, un perfil convexo.The cutting edge 14d of the branch 14 is curved and has, on the distal portion 14b and the central portion 14c, a convex profile.

La arista de corte 16d presenta un desnivel radial.The cutting edge 16d has a radial slope.

La arista de corte 16d presenta una longitud inferior a las aristas de corte 12d, 14d.The cutting edge 16d has a length less than the cutting edges 12d, 14d.

Cada arista de corte 12d, 14d, 16d comprende un punto de ataque, respectivamente 12e, 14e, 16e dispuesto axialmente hacia adelante. Los puntos de ataque 12e, 14e, 16e estan dispuestos en un mismo plano radial P.Each cutting edge 12d, 14d, 16d comprises a point of attack, respectively 12e, 14e, 16e arranged axially forward. The attack points 12e, 14e, 16e are arranged in the same radial plane P.

Cada arista de corte 12d, 14d, 16d comprende un punto de cola 12f, 14f, 16f, dispuestos axialmente hacia atras. Los puntos de cola 12f, 14f, 16f, estan dispuestos en un mismo plano radial P\Each cutting edge 12d, 14d, 16d comprises a tail point 12f, 14f, 16f, arranged axially backwards. The tail points 12f, 14f, 16f, are arranged in the same radial plane P \

Las aristas de corte 14d, 16d estan axialmente mas hacia adelante que la arista de corte 12d entre los puntos de ataque y los puntos de cola (tal como aparece en la figura 5).The cutting edges 14d, 16d are axially further forward than the cutting edge 12d between the attack points and the tail points (as shown in Figure 5).

Los puntos de ataque 12e, 14e, 16e estan dispuestos alrededor de un vaciamiento 18 habilitado en el extremo del alma 10. El vaciamiento 18 presenta un fondo de perfil convexo. Mas especfficamente, el vaciamiento 18 es abombado y presenta una forma de casquete esferico. El vaciamiento 18 esta centrado sobre el eje 8.The attack points 12e, 14e, 16e are arranged around a hollow 18 enabled at the end of the soul 10. The hollow 18 has a convex profile bottom. More specifically, the emptying 18 is domed and has a spherical cap shape. The emptying 18 is centered on the axis 8.

Como variante el numero de ramas puede ser igual a dos o tambien superior a tres.As a variant the number of branches can be equal to two or also greater than three.

Claims (10)

55 1010 15fifteen 20twenty 2525 3030 3535 4040 45Four. Five 50fifty 5555 6060 6565 REIVINDICACIONES 1. Plaqueta de corte (6) disenada para estar fijada a un extremo de un cuerpo de herramienta (4) con el fin de arrastrarse en rotacion alrededor de un eje (8), que incluye:1. Cutting plate (6) designed to be fixed to one end of a tool body (4) in order to creep around an axis (8), which includes: - un alma (10) que se extiende axialmente; y- a soul (10) extending axially; Y - al menos una primera rama (12) y una segunda rama (14) que se extienden radialmente desde el alma (10), comprendiendo la primera rama (12) y la segunda rama (14) cada una:- at least a first branch (12) and a second branch (14) extending radially from the soul (10), the first branch (12) and the second branch (14) each comprising: • una porcion proximal (12a, 14a) conectada al alma (10), una porcion distal (12b, 14b) y una porcion central (12c, 14c) que conecta la porcion proximal (12a, 14a) y la porcion distal (12b, 14b); y• a proximal portion (12a, 14a) connected to the soul (10), a distal portion (12b, 14b) and a central portion (12c, 14c) that connects the proximal portion (12a, 14a) and the distal portion (12b, 14b); Y • una arista de corte (12d, 14d) que se extiende al menos sobre la porcion distal (12b, 14b) y la porcion central (12c, 14c);• a cutting edge (12d, 14d) that extends at least over the distal portion (12b, 14b) and the central portion (12c, 14c); caracterizada por que:characterized by: - la porcion distal (12b) de la primera rama (12) esta dispuesta radialmente hacia adelante con respecto a la porcion central (12c) de la primera rama (12); y- the distal portion (12b) of the first branch (12) is arranged radially forward with respect to the central portion (12c) of the first branch (12); Y - la porcion central (14c) de la segunda rama (14) esta dispuesta radialmente hacia adelante con respecto a la porcion distal (14b) de la segunda rama (14).- the central portion (14c) of the second branch (14) is arranged radially forward with respect to the distal portion (14b) of the second branch (14). 2. Plaqueta de corte (6) segun la reivindicacion 1, caracterizada por que la arista de corte (12d) de la primera rama (12) presenta, al menos sobre la porcion distal (12b) y la porcion central (12c), un perfil concavo; y2. Cutting plate (6) according to claim 1, characterized in that the cutting edge (12d) of the first branch (12) has, at least on the distal portion (12b) and the central portion (12c), a concave profile; Y por que la arista de corte (14d) de la segunda rama (14) presenta, al menos sobre la porcion distal (14b) y la porcion central (14c), un perfil convexo.because the cutting edge (14d) of the second branch (14) has, at least on the distal portion (14b) and the central portion (14c), a convex profile. 3. Plaqueta de corte (6) segun una cualquiera de las reivindicaciones 1 o 2, caracterizada por que incluye al menos una tercera rama (16) que comprende:3. Cutting plate (6) according to any one of claims 1 or 2, characterized in that it includes at least a third branch (16) comprising: • una porcion proximal (16a) conectada al alma (10), una porcion distal (16b) y una porcion central (16c) que conecta la porcion proximal (16a) y la porcion distal (16b); y• a proximal portion (16a) connected to the soul (10), a distal portion (16b) and a central portion (16c) that connects the proximal portion (16a) and the distal portion (16b); Y • una arista de corte (16d) que se extiende al menos sobre la porcion distal (16b) y la porcion central (16c).• a cutting edge (16d) that extends at least over the distal portion (16b) and the central portion (16c). 4. Plaqueta de corte (6) segun la reivindicacion 3, caracterizada por que cada arista de corte (12d, 14d, 16d) de la primera rama (12), de la segunda rama (14) y de la tercera rama (16) comprende un punto de ataque (12e, 14e, 16e) dispuesto axialmente hacia adelante; y4. Cutting plate (6) according to claim 3, characterized in that each cutting edge (12d, 14d, 16d) of the first branch (12), of the second branch (14) and of the third branch (16) it comprises an attack point (12e, 14e, 16e) arranged axially forward; Y por que los puntos de ataque (12e, 14e, 16e) de la primera rama (12), de la segunda rama (14) y de la tercera rama (16) estan dispuestos en un mismo plano radial (P).because the attack points (12e, 14e, 16e) of the first branch (12), of the second branch (14) and of the third branch (16) are arranged in the same radial plane (P). 5. Plaqueta de corte (6) segun la reivindicacion 4, caracterizada por que los puntos de ataque (12e, 14e, 16e) de la primera rama (12), de la segunda rama (14) y de la tercera rama (16) estan dispuestos alrededor de un vaciamiento (18) habilitado en un extremo del alma (10).5. Cutting plate (6) according to claim 4, characterized in that the attack points (12e, 14e, 16e) of the first branch (12), the second branch (14) and the third branch (16) they are arranged around an emptying (18) enabled at one end of the soul (10). 6. Plaqueta de corte (6) segun la reivindicacion 5, caracterizada por que el vaciamiento (18) presenta un fondo de perfil convexo.6. Cutting plate (6) according to claim 5, characterized in that the emptying (18) has a convex profile bottom. 7. Plaqueta de corte (6) segun una cualquiera de las reivindicaciones 3 a 6, caracterizada por que la porcion central (16c) de la tercera rama (16) es mas ancha que la porcion distal (16b) de la tercera rama (16), de modo que la arista de corte (16d) de la tercera rama (16) presenta un desnivel.7. Cutting plate (6) according to any one of claims 3 to 6, characterized in that the central portion (16c) of the third branch (16) is wider than the distal portion (16b) of the third branch (16 ), so that the cutting edge (16d) of the third branch (16) has a slope. 8. Plaqueta de corte (6) segun una cualquiera de las reivindicaciones 3 a 7, caracterizada por que la arista de corte (16d) de la tercera rama (16) esta, al menos en parte, axialmente mas hacia adelante que la arista de corte (12d) de la primera rama (12) y/o que la arista de corte (14d) de la segunda rama (14).8. Cutting plate (6) according to any one of claims 3 to 7, characterized in that the cutting edge (16d) of the third branch (16) is, at least in part, axially further forward than the edge of cut (12d) of the first branch (12) and / or that the cutting edge (14d) of the second branch (14). 9. Plaqueta de corte (6) segun una cualquiera de las reivindicaciones 3 a 8, caracterizada por que la arista de corte (16d) de la tercera rama (16) presenta una longitud inferior a la arista de corte (12d) de la primera rama (12) y/o a la arista de corte (14d) de la segunda rama (14).9. Cutting plate (6) according to any one of claims 3 to 8, characterized in that the cutting edge (16d) of the third branch (16) has a length less than the cutting edge (12d) of the first branch (12) and / or the cutting edge (14d) of the second branch (14). 10. Herramienta de perforacion (2), caracterizada por que incluye:10. Drilling tool (2), characterized in that it includes: - un cuerpo de herramienta (4); y- a tool body (4); Y - una plaqueta de corte (6) segun una cualquiera de las reivindicaciones 1 a 9, fijada a un extremo del cuerpo de herramienta (4).- a cutting plate (6) according to any one of claims 1 to 9, fixed to one end of the tool body (4).
ES14715050.2T 2013-04-19 2014-03-17 Cutting plate Active ES2616656T3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1353601 2013-04-19
FR1353601A FR3004746B1 (en) 2013-04-19 2013-04-19 CUTTING PLATE
PCT/FR2014/050609 WO2014170568A1 (en) 2013-04-19 2014-03-17 Cutting tip

Publications (1)

Publication Number Publication Date
ES2616656T3 true ES2616656T3 (en) 2017-06-13

Family

ID=48656174

Family Applications (1)

Application Number Title Priority Date Filing Date
ES14715050.2T Active ES2616656T3 (en) 2013-04-19 2014-03-17 Cutting plate

Country Status (8)

Country Link
US (1) US10183342B2 (en)
EP (1) EP2986803B1 (en)
JP (1) JP6397485B2 (en)
CN (1) CN105051314B (en)
ES (1) ES2616656T3 (en)
FR (1) FR3004746B1 (en)
PT (1) PT2986803T (en)
WO (1) WO2014170568A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3501701T3 (en) * 2017-12-22 2021-01-11 Ceratizit Austria Gesellschaft M.B.H. Tool system and method for turning
US11951553B2 (en) * 2021-03-29 2024-04-09 Iscar, Ltd. Rotatable cutting head having tip portion with three radially extending cutting edges forming a rectilinear rotational profile
USD1009105S1 (en) * 2021-09-08 2023-12-26 Apex Brands, Inc. Tri-paddle bit

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211106A3 (en) * 1985-08-03 1987-09-02 HAWERA Präzisionswerkzeuge GmbH Drill with a plurality of lips
JPH02198707A (en) * 1989-01-24 1990-08-07 Masao Kubota Drill
JPH11510103A (en) * 1995-07-27 1999-09-07 ラルフ・シー・メイズ Drill bit
AT1513U1 (en) * 1995-11-23 1997-06-25 Techmo Entw & Vertriebs Gmbh DRILL BIT
DE50001645D1 (en) * 1999-08-03 2003-05-08 Kennametal Inc DRILL WITH INTERCHANGEABLE CUTTING HEAD
US6595305B1 (en) * 2000-02-15 2003-07-22 Kennametal Inc. Drill bit, hard member, and bit body
DE50207010D1 (en) * 2001-05-17 2006-07-06 Atlas Copco Mai Gmbh drill bit
US6860344B2 (en) * 2001-06-25 2005-03-01 Kennametal Inc. Monolithic roof cutting bit insert
JP3940716B2 (en) * 2003-10-08 2007-07-04 株式会社小林ギムネ製作所 Large-diameter woodworking cone
JP3801606B2 (en) * 2004-12-01 2006-07-26 ユニオンツール株式会社 Drill
DE102008048599A1 (en) * 2008-09-23 2010-03-25 Illinois Tool Works Inc., Glenview rock drill
DE102008043999A1 (en) * 2008-11-24 2010-05-27 Robert Bosch Gmbh Drilling tool, in particular for drilling and / or chiseling devices
IL201486A (en) * 2009-10-13 2015-05-31 Iscar Ltd Drill
DE102010041238A1 (en) * 2009-12-30 2011-07-07 Robert Bosch GmbH, 70469 Rock drilling tool for rotary-impact machining of concrete, stone, masonry and the like materials
US8734068B2 (en) * 2010-08-09 2014-05-27 Kennametal Inc. Cutting tool with unequal flute spacing
CN101983811B (en) * 2010-11-30 2012-07-25 株洲钻石切削刀具股份有限公司 Unequal helix angle end mill
US8807248B2 (en) * 2011-03-23 2014-08-19 Kennametal Inc. Cutting insert for a roof drill bit
US9879483B2 (en) * 2014-11-07 2018-01-30 Drebo Werkzeugfabrik Gmbh Drill head insert or drill head attachment and drill

Also Published As

Publication number Publication date
WO2014170568A1 (en) 2014-10-23
CN105051314B (en) 2017-02-22
JP6397485B2 (en) 2018-09-26
JP2016515477A (en) 2016-05-30
CN105051314A (en) 2015-11-11
US10183342B2 (en) 2019-01-22
EP2986803B1 (en) 2017-01-25
US20160082524A1 (en) 2016-03-24
FR3004746B1 (en) 2015-05-15
EP2986803A1 (en) 2016-02-24
FR3004746A1 (en) 2014-10-24
PT2986803T (en) 2017-03-08

Similar Documents

Publication Publication Date Title
ES2424451T3 (en) Tissue cutting devices
ES2519341T3 (en) Spiral drill bit
ES2556805T3 (en) Screw forming thread and its use
ES2331032T3 (en) SECURITY BELT TONGUE.
ES2663776T3 (en) Extended bucket for a safety pen needle
ES3053957T3 (en) Intravenous catheter apparatus
ES2211387T3 (en) BOLT HEAD SCREW.
ES2616656T3 (en) Cutting plate
ES2770506T3 (en) Screw drive
ES2363381T3 (en) SELF-DRILLING SCREW.
ES2634671T3 (en) Fixing screw for use in concrete
ES2318213T3 (en) PROTECTIVE COVER FOR NEEDLE NEEDLE.
ES2625089T3 (en) Surgical drill with odd grooves
ES2740831T3 (en) Eye surgical cutting tool
ES2927892T3 (en) Deburring tool and procedure for deburring the edges of the hole
ES2486253T3 (en) Rotary cutting tool and cutting insert thereof
ES2399391T3 (en) Drill
ES2986001T3 (en) Surgical cutting tool type bur
RU2016141837A (en) MEDICAL DEVICE FOR TISSUE REMOVAL
ES2531366T3 (en) Scalpel safety handle
ES3041920T3 (en) Device for cutting tubes
ES2237358T3 (en) BOLT HEAD SCREW.
ES2588248T3 (en) Gardening Scissors
ES2330787T3 (en) TOOL SYSTEM FOR MACHINING BY STARTING OF VIRUTES.
ES2899645T3 (en) Endodontic instrument, in particular for reaming a root canal